Riveting machine



July 8, 1924. 1,500,625

c. J. JOHNSON llllll mum mnnnummlulll Patented July 8, 1924.

CHRISTIAN J. JOHNSON,

0F COLFAX, WISCONSIN.

RIVETING- MACHINE.

Application filed April 3,

T 0 all whom it may concern:

Be it lmown that I, CHRISTIAN J. JOHN- SON, a citizen of the UnitedStates, residing v at Colfax, in the county of Dunn, State of Wisconsin,have invented certain new and useful Improvements in Riveting Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to new and useful improvements in rivetingmachines.

One object of the invention is to provide a novel and improved means foradjusting the height of the anvil of the riveting machine to conform tothe length of the rivet, and the thickness of the work.

Another object is to provide a device of this character which can bereadily applied to riveting machines, and which is adjustable to raiseor lower the anvil.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of a riveting machine showing the adjustingattachment thereon, and partly in section to show the lower end of theanvil in one of the depressions.

Figure 2 is a top plan view of the disc.

Referring particularly to the accompanying drawing, 10 represents theframe of the riveting machine, which is U-shaped in outline, and havingthe lever actuated hammer or depressing member 11 mounted in its upperarm, and the anvil member 12, with its spring supported rivet embracingsleeve 12, disposed in the lower arm. Rotatably mounted in the base 13,of the frame of the machine, beneath the lower end of the lower arm ofthe frame, is a horizontal disk 14 having a circular series ofdepressions 15 in its upper face, said depressions being of differentdepths, and each being arranged to receive the lower end of the anvil,when said disk is properly rotated on its central pivot 16. Theperipheral edge of the disk 14 projects forwardly beyond the outer endof the lower arm of the frame 10, to permit same being grasped when. iti e r d t ro a e the d sk to dis- 1923. Serial No. 629,640.

pose the proper depression directly beneath the lower end of the anvil12.

When a shorter rivet is being used, the disk is rotated to dispose oneof the shallower depressions beneath the anvil, while when a longerrivet is used a deeper depression is presented beneath the anvil, uponrotation of the disk to the proper de ree.

Xtending between each pair of depressions 15 is a groove or channel 17,for guiding the lower end of the anvil member 12 from one depression tothe next.

lVhat is claimed is:

1. A riveting machine including an anvil supporting frame, the anvilprojecting be low the lower side of the frame, and a rotatable diskmounted beneath the lower end of the anvil and having a circular seriesof depressions of different depths for successively receiving the lowerend of the anvil to raise and lower the anvil.

2. The combination with the frame of a riveting machine having an anvilsupported therein, with its lower end projecting below the frame, of ahorizontal disk rotatably supported beneath the frame and anvil andhaving a circular series of depressions of graduated depths adapted tobe brought successively beneath the anvil for receiving the lower end ofthe anvil.

3. The combination with the frame and anvil of a riveting machine, theanvil having its lower end projecting below the frame, of a diskrotatably supported in a horizontal position beneath the frame andhaving depressions for successive reception of the lower end of theanvil for holding the anvil at different elevations in accordance withthe size of rivet used.

4. The combination with the frame of a riveting machine and its anvilprojecting below the frame, of means movably supported beneath the frameand anvil and arranged to be moved transversely of and in contactingrelation to said anvil for elevating and lowering the anvil to differentdegrees. V

In testimony whereof, I afiix my signature, in the presence of twowitnesses.

CHRISTIAN J. JOHNSON.- Witnesses:

H. O. BERG, J N E ETER N.

